International Education and Resource Network (iEARN) is a global K-12 online project-based learning network. "The vision and purpose of iEARN is to enable young people to undertake projects designed to make a meaningful contribution to the health and welfare of the planet and its people" (Preamble to the iEARN Constitution). Educators are the key to successful online collaboration. iEARN has trained over 45,000 educators from more than 110 countries since 1988.